Welding gun



FIG. 1 is a side perspective view of a welding gun of the present design;

FIG. 2 is a left side elevational view of the welding gun of FIG. 1;

FIG. 3 is a right side elevational view of the welding gun of FIG. 1;

FIG. 4 is a top plan view of the welding gun of FIG. 1;

FIG. 5 is a is a bottom plan view of the welding gun of FIG. 1;

FIG. 6 is a front elevational view of the welding gun of FIG. 1; and,

FIG. 7 is a rear elevational view of the welding gun of FIG. 1. 

The ornamental design for a welding gun, as shown and described. 